To find all the divisors of the number 42,821,350:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 42,821,350:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
42,821,350 = 2 × 52 × 11 × 13 × 53 × 113
42,821,350 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 × 2 × 2 = 96
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 42,821,350
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
5
composite factor = 2 × 5 =
10
prime factor =
11
prime factor =
13
composite factor = 2 × 11 =
22
composite factor = 5
2 =
25
composite factor = 2 × 13 =
26
composite factor = 2 × 5
2 =
50
prime factor =
53
composite factor = 5 × 11 =
55
composite factor = 5 × 13 =
65
composite factor = 2 × 53 =
106
composite factor = 2 × 5 × 11 =
110
prime factor =
113
composite factor = 2 × 5 × 13 =
130
composite factor = 11 × 13 =
143
composite factor = 2 × 113 =
226
composite factor = 5 × 53 =
265
composite factor = 5
2 × 11 =
275
composite factor = 2 × 11 × 13 =
286
composite factor = 5
2 × 13 =
325
composite factor = 2 × 5 × 53 =
530
composite factor = 2 × 5
2 × 11 =
550
composite factor = 5 × 113 =
565
composite factor = 11 × 53 =
583
composite factor = 2 × 5
2 × 13 =
650
composite factor = 13 × 53 =
689
composite factor = 5 × 11 × 13 =
715
composite factor = 2 × 5 × 113 =
1,130
composite factor = 2 × 11 × 53 =
1,166
composite factor = 11 × 113 =
1,243
composite factor = 5
2 × 53 =
1,325
composite factor = 2 × 13 × 53 =
1,378
composite factor = 2 × 5 × 11 × 13 =
1,430
composite factor = 13 × 113 =
1,469
composite factor = 2 × 11 × 113 =
2,486
composite factor = 2 × 5
2 × 53 =
2,650
composite factor = 5
2 × 113 =
2,825
composite factor = 5 × 11 × 53 =
2,915
composite factor = 2 × 13 × 113 =
2,938
composite factor = 5 × 13 × 53 =
3,445
composite factor = 5
2 × 11 × 13 =
3,575
composite factor = 2 × 5
2 × 113 =
5,650
composite factor = 2 × 5 × 11 × 53 =
5,830
composite factor = 53 × 113 =
5,989
composite factor = 5 × 11 × 113 =
6,215
This list continues below...
... This list continues from above
composite factor = 2 × 5 × 13 × 53 =
6,890
composite factor = 2 × 5
2 × 11 × 13 =
7,150
composite factor = 5 × 13 × 113 =
7,345
composite factor = 11 × 13 × 53 =
7,579
composite factor = 2 × 53 × 113 =
11,978
composite factor = 2 × 5 × 11 × 113 =
12,430
composite factor = 5
2 × 11 × 53 =
14,575
composite factor = 2 × 5 × 13 × 113 =
14,690
composite factor = 2 × 11 × 13 × 53 =
15,158
composite factor = 11 × 13 × 113 =
16,159
composite factor = 5
2 × 13 × 53 =
17,225
composite factor = 2 × 5
2 × 11 × 53 =
29,150
composite factor = 5 × 53 × 113 =
29,945
composite factor = 5
2 × 11 × 113 =
31,075
composite factor = 2 × 11 × 13 × 113 =
32,318
composite factor = 2 × 5
2 × 13 × 53 =
34,450
composite factor = 5
2 × 13 × 113 =
36,725
composite factor = 5 × 11 × 13 × 53 =
37,895
composite factor = 2 × 5 × 53 × 113 =
59,890
composite factor = 2 × 5
2 × 11 × 113 =
62,150
composite factor = 11 × 53 × 113 =
65,879
composite factor = 2 × 5
2 × 13 × 113 =
73,450
composite factor = 2 × 5 × 11 × 13 × 53 =
75,790
composite factor = 13 × 53 × 113 =
77,857
composite factor = 5 × 11 × 13 × 113 =
80,795
composite factor = 2 × 11 × 53 × 113 =
131,758
composite factor = 5
2 × 53 × 113 =
149,725
composite factor = 2 × 13 × 53 × 113 =
155,714
composite factor = 2 × 5 × 11 × 13 × 113 =
161,590
composite factor = 5
2 × 11 × 13 × 53 =
189,475
composite factor = 2 × 5
2 × 53 × 113 =
299,450
composite factor = 5 × 11 × 53 × 113 =
329,395
composite factor = 2 × 5
2 × 11 × 13 × 53 =
378,950
composite factor = 5 × 13 × 53 × 113 =
389,285
composite factor = 5
2 × 11 × 13 × 113 =
403,975
composite factor = 2 × 5 × 11 × 53 × 113 =
658,790
composite factor = 2 × 5 × 13 × 53 × 113 =
778,570
composite factor = 2 × 5
2 × 11 × 13 × 113 =
807,950
composite factor = 11 × 13 × 53 × 113 =
856,427
composite factor = 5
2 × 11 × 53 × 113 =
1,646,975
composite factor = 2 × 11 × 13 × 53 × 113 =
1,712,854
composite factor = 5
2 × 13 × 53 × 113 =
1,946,425
composite factor = 2 × 5
2 × 11 × 53 × 113 =
3,293,950
composite factor = 2 × 5
2 × 13 × 53 × 113 =
3,892,850
composite factor = 5 × 11 × 13 × 53 × 113 =
4,282,135
composite factor = 2 × 5 × 11 × 13 × 53 × 113 =
8,564,270
composite factor = 5
2 × 11 × 13 × 53 × 113 =
21,410,675
composite factor = 2 × 5
2 × 11 × 13 × 53 × 113 =
42,821,350
96 factors (divisors)
What times what is 42,821,350?
What number multiplied by what number equals 42,821,350?
All the combinations of any two natural numbers whose product equals 42,821,350.
1 × 42,821,350 = 42,821,350
2 × 21,410,675 = 42,821,350
5 × 8,564,270 = 42,821,350
10 × 4,282,135 = 42,821,350
11 × 3,892,850 = 42,821,350
13 × 3,293,950 = 42,821,350
22 × 1,946,425 = 42,821,350
25 × 1,712,854 = 42,821,350
26 × 1,646,975 = 42,821,350
50 × 856,427 = 42,821,350
53 × 807,950 = 42,821,350
55 × 778,570 = 42,821,350
65 × 658,790 = 42,821,350
106 × 403,975 = 42,821,350
110 × 389,285 = 42,821,350
113 × 378,950 = 42,821,350
130 × 329,395 = 42,821,350
143 × 299,450 = 42,821,350
226 × 189,475 = 42,821,350
265 × 161,590 = 42,821,350
275 × 155,714 = 42,821,350
286 × 149,725 = 42,821,350
325 × 131,758 = 42,821,350
530 × 80,795 = 42,821,350
550 × 77,857 = 42,821,350
565 × 75,790 = 42,821,350
583 × 73,450 = 42,821,350
650 × 65,879 = 42,821,350
689 × 62,150 = 42,821,350
715 × 59,890 = 42,821,350
1,130 × 37,895 = 42,821,350
1,166 × 36,725 = 42,821,350
1,243 × 34,450 = 42,821,350
1,325 × 32,318 = 42,821,350
1,378 × 31,075 = 42,821,350
1,430 × 29,945 = 42,821,350
1,469 × 29,150 = 42,821,350
2,486 × 17,225 = 42,821,350
2,650 × 16,159 = 42,821,350
2,825 × 15,158 = 42,821,350
2,915 × 14,690 = 42,821,350
2,938 × 14,575 = 42,821,350
3,445 × 12,430 = 42,821,350
3,575 × 11,978 = 42,821,350
5,650 × 7,579 = 42,821,350
5,830 × 7,345 = 42,821,350
5,989 × 7,150 = 42,821,350
6,215 × 6,890 = 42,821,350
48 unique multiplications The final answer:
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