To find all the divisors of the number 46,314,740:
- 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 46,314,740:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
46,314,740 = 22 × 5 × 29 × 47 × 1,699
46,314,740 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) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 46,314,740
- 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
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2 × 5 =
10
composite factor = 2
2 × 5 =
20
prime factor =
29
prime factor =
47
composite factor = 2 × 29 =
58
composite factor = 2 × 47 =
94
composite factor = 2
2 × 29 =
116
composite factor = 5 × 29 =
145
composite factor = 2
2 × 47 =
188
composite factor = 5 × 47 =
235
composite factor = 2 × 5 × 29 =
290
composite factor = 2 × 5 × 47 =
470
composite factor = 2
2 × 5 × 29 =
580
composite factor = 2
2 × 5 × 47 =
940
composite factor = 29 × 47 =
1,363
prime factor =
1,699
composite factor = 2 × 29 × 47 =
2,726
composite factor = 2 × 1,699 =
3,398
composite factor = 2
2 × 29 × 47 =
5,452
composite factor = 2
2 × 1,699 =
6,796
This list continues below...
... This list continues from above
composite factor = 5 × 29 × 47 =
6,815
composite factor = 5 × 1,699 =
8,495
composite factor = 2 × 5 × 29 × 47 =
13,630
composite factor = 2 × 5 × 1,699 =
16,990
composite factor = 2
2 × 5 × 29 × 47 =
27,260
composite factor = 2
2 × 5 × 1,699 =
33,980
composite factor = 29 × 1,699 =
49,271
composite factor = 47 × 1,699 =
79,853
composite factor = 2 × 29 × 1,699 =
98,542
composite factor = 2 × 47 × 1,699 =
159,706
composite factor = 2
2 × 29 × 1,699 =
197,084
composite factor = 5 × 29 × 1,699 =
246,355
composite factor = 2
2 × 47 × 1,699 =
319,412
composite factor = 5 × 47 × 1,699 =
399,265
composite factor = 2 × 5 × 29 × 1,699 =
492,710
composite factor = 2 × 5 × 47 × 1,699 =
798,530
composite factor = 2
2 × 5 × 29 × 1,699 =
985,420
composite factor = 2
2 × 5 × 47 × 1,699 =
1,597,060
composite factor = 29 × 47 × 1,699 =
2,315,737
composite factor = 2 × 29 × 47 × 1,699 =
4,631,474
composite factor = 2
2 × 29 × 47 × 1,699 =
9,262,948
composite factor = 5 × 29 × 47 × 1,699 =
11,578,685
composite factor = 2 × 5 × 29 × 47 × 1,699 =
23,157,370
composite factor = 2
2 × 5 × 29 × 47 × 1,699 =
46,314,740
48 factors (divisors)
What times what is 46,314,740?
What number multiplied by what number equals 46,314,740?
All the combinations of any two natural numbers whose product equals 46,314,740.
1 × 46,314,740 = 46,314,740
2 × 23,157,370 = 46,314,740
4 × 11,578,685 = 46,314,740
5 × 9,262,948 = 46,314,740
10 × 4,631,474 = 46,314,740
20 × 2,315,737 = 46,314,740
29 × 1,597,060 = 46,314,740
47 × 985,420 = 46,314,740
58 × 798,530 = 46,314,740
94 × 492,710 = 46,314,740
116 × 399,265 = 46,314,740
145 × 319,412 = 46,314,740
188 × 246,355 = 46,314,740
235 × 197,084 = 46,314,740
290 × 159,706 = 46,314,740
470 × 98,542 = 46,314,740
580 × 79,853 = 46,314,740
940 × 49,271 = 46,314,740
1,363 × 33,980 = 46,314,740
1,699 × 27,260 = 46,314,740
2,726 × 16,990 = 46,314,740
3,398 × 13,630 = 46,314,740
5,452 × 8,495 = 46,314,740
6,796 × 6,815 = 46,314,740
24 unique multiplications The final answer:
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