To find all the divisors of the number 41,580,420:
- 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 41,580,420:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
41,580,420 = 22 × 3 × 5 × 72 × 14,143
41,580,420 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 = (2 + 1) × (1 + 1) × (1 + 1) × (2 + 1) × (1 + 1) = 3 × 2 × 2 × 3 × 2 = 72
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 41,580,420
- 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 =
3
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 3 × 5 =
15
composite factor = 2
2 × 5 =
20
composite factor = 3 × 7 =
21
composite factor = 2
2 × 7 =
28
composite factor = 2 × 3 × 5 =
30
composite factor = 5 × 7 =
35
composite factor = 2 × 3 × 7 =
42
composite factor = 7
2 =
49
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 5 × 7 =
70
composite factor = 2
2 × 3 × 7 =
84
composite factor = 2 × 7
2 =
98
composite factor = 3 × 5 × 7 =
105
composite factor = 2
2 × 5 × 7 =
140
composite factor = 3 × 7
2 =
147
composite factor = 2
2 × 7
2 =
196
composite factor = 2 × 3 × 5 × 7 =
210
composite factor = 5 × 7
2 =
245
composite factor = 2 × 3 × 7
2 =
294
composite factor = 2
2 × 3 × 5 × 7 =
420
composite factor = 2 × 5 × 7
2 =
490
composite factor = 2
2 × 3 × 7
2 =
588
composite factor = 3 × 5 × 7
2 =
735
composite factor = 2
2 × 5 × 7
2 =
980
composite factor = 2 × 3 × 5 × 7
2 =
1,470
composite factor = 2
2 × 3 × 5 × 7
2 =
2,940
This list continues below...
... This list continues from above
prime factor =
14,143
composite factor = 2 × 14,143 =
28,286
composite factor = 3 × 14,143 =
42,429
composite factor = 2
2 × 14,143 =
56,572
composite factor = 5 × 14,143 =
70,715
composite factor = 2 × 3 × 14,143 =
84,858
composite factor = 7 × 14,143 =
99,001
composite factor = 2 × 5 × 14,143 =
141,430
composite factor = 2
2 × 3 × 14,143 =
169,716
composite factor = 2 × 7 × 14,143 =
198,002
composite factor = 3 × 5 × 14,143 =
212,145
composite factor = 2
2 × 5 × 14,143 =
282,860
composite factor = 3 × 7 × 14,143 =
297,003
composite factor = 2
2 × 7 × 14,143 =
396,004
composite factor = 2 × 3 × 5 × 14,143 =
424,290
composite factor = 5 × 7 × 14,143 =
495,005
composite factor = 2 × 3 × 7 × 14,143 =
594,006
composite factor = 7
2 × 14,143 =
693,007
composite factor = 2
2 × 3 × 5 × 14,143 =
848,580
composite factor = 2 × 5 × 7 × 14,143 =
990,010
composite factor = 2
2 × 3 × 7 × 14,143 =
1,188,012
composite factor = 2 × 7
2 × 14,143 =
1,386,014
composite factor = 3 × 5 × 7 × 14,143 =
1,485,015
composite factor = 2
2 × 5 × 7 × 14,143 =
1,980,020
composite factor = 3 × 7
2 × 14,143 =
2,079,021
composite factor = 2
2 × 7
2 × 14,143 =
2,772,028
composite factor = 2 × 3 × 5 × 7 × 14,143 =
2,970,030
composite factor = 5 × 7
2 × 14,143 =
3,465,035
composite factor = 2 × 3 × 7
2 × 14,143 =
4,158,042
composite factor = 2
2 × 3 × 5 × 7 × 14,143 =
5,940,060
composite factor = 2 × 5 × 7
2 × 14,143 =
6,930,070
composite factor = 2
2 × 3 × 7
2 × 14,143 =
8,316,084
composite factor = 3 × 5 × 7
2 × 14,143 =
10,395,105
composite factor = 2
2 × 5 × 7
2 × 14,143 =
13,860,140
composite factor = 2 × 3 × 5 × 7
2 × 14,143 =
20,790,210
composite factor = 2
2 × 3 × 5 × 7
2 × 14,143 =
41,580,420
72 factors (divisors)
What times what is 41,580,420?
What number multiplied by what number equals 41,580,420?
All the combinations of any two natural numbers whose product equals 41,580,420.
1 × 41,580,420 = 41,580,420
2 × 20,790,210 = 41,580,420
3 × 13,860,140 = 41,580,420
4 × 10,395,105 = 41,580,420
5 × 8,316,084 = 41,580,420
6 × 6,930,070 = 41,580,420
7 × 5,940,060 = 41,580,420
10 × 4,158,042 = 41,580,420
12 × 3,465,035 = 41,580,420
14 × 2,970,030 = 41,580,420
15 × 2,772,028 = 41,580,420
20 × 2,079,021 = 41,580,420
21 × 1,980,020 = 41,580,420
28 × 1,485,015 = 41,580,420
30 × 1,386,014 = 41,580,420
35 × 1,188,012 = 41,580,420
42 × 990,010 = 41,580,420
49 × 848,580 = 41,580,420
60 × 693,007 = 41,580,420
70 × 594,006 = 41,580,420
84 × 495,005 = 41,580,420
98 × 424,290 = 41,580,420
105 × 396,004 = 41,580,420
140 × 297,003 = 41,580,420
147 × 282,860 = 41,580,420
196 × 212,145 = 41,580,420
210 × 198,002 = 41,580,420
245 × 169,716 = 41,580,420
294 × 141,430 = 41,580,420
420 × 99,001 = 41,580,420
490 × 84,858 = 41,580,420
588 × 70,715 = 41,580,420
735 × 56,572 = 41,580,420
980 × 42,429 = 41,580,420
1,470 × 28,286 = 41,580,420
2,940 × 14,143 = 41,580,420
36 unique multiplications The final answer:
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