To find all the divisors of the number 3,740,737:
- 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 3,740,737:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,740,737 = 7 × 11 × 13 × 37 × 101
3,740,737 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) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 3,740,737
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- 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 =
7
prime factor =
11
prime factor =
13
prime factor =
37
composite factor = 7 × 11 =
77
composite factor = 7 × 13 =
91
prime factor =
101
composite factor = 11 × 13 =
143
composite factor = 7 × 37 =
259
composite factor = 11 × 37 =
407
composite factor = 13 × 37 =
481
composite factor = 7 × 101 =
707
composite factor = 7 × 11 × 13 =
1,001
composite factor = 11 × 101 =
1,111
composite factor = 13 × 101 =
1,313
This list continues below...
... This list continues from above
composite factor = 7 × 11 × 37 =
2,849
composite factor = 7 × 13 × 37 =
3,367
composite factor = 37 × 101 =
3,737
composite factor = 11 × 13 × 37 =
5,291
composite factor = 7 × 11 × 101 =
7,777
composite factor = 7 × 13 × 101 =
9,191
composite factor = 11 × 13 × 101 =
14,443
composite factor = 7 × 37 × 101 =
26,159
composite factor = 7 × 11 × 13 × 37 =
37,037
composite factor = 11 × 37 × 101 =
41,107
composite factor = 13 × 37 × 101 =
48,581
composite factor = 7 × 11 × 13 × 101 =
101,101
composite factor = 7 × 11 × 37 × 101 =
287,749
composite factor = 7 × 13 × 37 × 101 =
340,067
composite factor = 11 × 13 × 37 × 101 =
534,391
composite factor = 7 × 11 × 13 × 37 × 101 =
3,740,737
32 factors (divisors)
What times what is 3,740,737?
What number multiplied by what number equals 3,740,737?
All the combinations of any two natural numbers whose product equals 3,740,737.
1 × 3,740,737 = 3,740,737
7 × 534,391 = 3,740,737
11 × 340,067 = 3,740,737
13 × 287,749 = 3,740,737
37 × 101,101 = 3,740,737
77 × 48,581 = 3,740,737
91 × 41,107 = 3,740,737
101 × 37,037 = 3,740,737
143 × 26,159 = 3,740,737
259 × 14,443 = 3,740,737
407 × 9,191 = 3,740,737
481 × 7,777 = 3,740,737
707 × 5,291 = 3,740,737
1,001 × 3,737 = 3,740,737
1,111 × 3,367 = 3,740,737
1,313 × 2,849 = 3,740,737
16 unique multiplications The final answer:
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