To find all the divisors of the number 35,684,910:
- 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 35,684,910:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
35,684,910 = 2 × 32 × 5 × 373 × 1,063
35,684,910 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) = 2 × 3 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 35,684,910
- 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
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 2 × 3 × 5 =
30
composite factor = 3
2 × 5 =
45
composite factor = 2 × 3
2 × 5 =
90
prime factor =
373
composite factor = 2 × 373 =
746
prime factor =
1,063
composite factor = 3 × 373 =
1,119
composite factor = 5 × 373 =
1,865
composite factor = 2 × 1,063 =
2,126
composite factor = 2 × 3 × 373 =
2,238
composite factor = 3 × 1,063 =
3,189
composite factor = 3
2 × 373 =
3,357
composite factor = 2 × 5 × 373 =
3,730
composite factor = 5 × 1,063 =
5,315
composite factor = 3 × 5 × 373 =
5,595
This list continues below...
... This list continues from above
composite factor = 2 × 3 × 1,063 =
6,378
composite factor = 2 × 3
2 × 373 =
6,714
composite factor = 3
2 × 1,063 =
9,567
composite factor = 2 × 5 × 1,063 =
10,630
composite factor = 2 × 3 × 5 × 373 =
11,190
composite factor = 3 × 5 × 1,063 =
15,945
composite factor = 3
2 × 5 × 373 =
16,785
composite factor = 2 × 3
2 × 1,063 =
19,134
composite factor = 2 × 3 × 5 × 1,063 =
31,890
composite factor = 2 × 3
2 × 5 × 373 =
33,570
composite factor = 3
2 × 5 × 1,063 =
47,835
composite factor = 2 × 3
2 × 5 × 1,063 =
95,670
composite factor = 373 × 1,063 =
396,499
composite factor = 2 × 373 × 1,063 =
792,998
composite factor = 3 × 373 × 1,063 =
1,189,497
composite factor = 5 × 373 × 1,063 =
1,982,495
composite factor = 2 × 3 × 373 × 1,063 =
2,378,994
composite factor = 3
2 × 373 × 1,063 =
3,568,491
composite factor = 2 × 5 × 373 × 1,063 =
3,964,990
composite factor = 3 × 5 × 373 × 1,063 =
5,947,485
composite factor = 2 × 3
2 × 373 × 1,063 =
7,136,982
composite factor = 2 × 3 × 5 × 373 × 1,063 =
11,894,970
composite factor = 3
2 × 5 × 373 × 1,063 =
17,842,455
composite factor = 2 × 3
2 × 5 × 373 × 1,063 =
35,684,910
48 factors (divisors)
What times what is 35,684,910?
What number multiplied by what number equals 35,684,910?
All the combinations of any two natural numbers whose product equals 35,684,910.
1 × 35,684,910 = 35,684,910
2 × 17,842,455 = 35,684,910
3 × 11,894,970 = 35,684,910
5 × 7,136,982 = 35,684,910
6 × 5,947,485 = 35,684,910
9 × 3,964,990 = 35,684,910
10 × 3,568,491 = 35,684,910
15 × 2,378,994 = 35,684,910
18 × 1,982,495 = 35,684,910
30 × 1,189,497 = 35,684,910
45 × 792,998 = 35,684,910
90 × 396,499 = 35,684,910
373 × 95,670 = 35,684,910
746 × 47,835 = 35,684,910
1,063 × 33,570 = 35,684,910
1,119 × 31,890 = 35,684,910
1,865 × 19,134 = 35,684,910
2,126 × 16,785 = 35,684,910
2,238 × 15,945 = 35,684,910
3,189 × 11,190 = 35,684,910
3,357 × 10,630 = 35,684,910
3,730 × 9,567 = 35,684,910
5,315 × 6,714 = 35,684,910
5,595 × 6,378 = 35,684,910
24 unique multiplications The final answer:
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