To find all the divisors of the number 475,960:
- 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 475,960:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
475,960 = 23 × 5 × 73 × 163
475,960 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 = (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 475,960
- 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
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
2 × 5 =
20
composite factor = 2
3 × 5 =
40
prime factor =
73
composite factor = 2 × 73 =
146
prime factor =
163
composite factor = 2
2 × 73 =
292
composite factor = 2 × 163 =
326
composite factor = 5 × 73 =
365
composite factor = 2
3 × 73 =
584
composite factor = 2
2 × 163 =
652
This list continues below...
... This list continues from above
composite factor = 2 × 5 × 73 =
730
composite factor = 5 × 163 =
815
composite factor = 2
3 × 163 =
1,304
composite factor = 2
2 × 5 × 73 =
1,460
composite factor = 2 × 5 × 163 =
1,630
composite factor = 2
3 × 5 × 73 =
2,920
composite factor = 2
2 × 5 × 163 =
3,260
composite factor = 2
3 × 5 × 163 =
6,520
composite factor = 73 × 163 =
11,899
composite factor = 2 × 73 × 163 =
23,798
composite factor = 2
2 × 73 × 163 =
47,596
composite factor = 5 × 73 × 163 =
59,495
composite factor = 2
3 × 73 × 163 =
95,192
composite factor = 2 × 5 × 73 × 163 =
118,990
composite factor = 2
2 × 5 × 73 × 163 =
237,980
composite factor = 2
3 × 5 × 73 × 163 =
475,960
32 factors (divisors)
What times what is 475,960?
What number multiplied by what number equals 475,960?
All the combinations of any two natural numbers whose product equals 475,960.
1 × 475,960 = 475,960
2 × 237,980 = 475,960
4 × 118,990 = 475,960
5 × 95,192 = 475,960
8 × 59,495 = 475,960
10 × 47,596 = 475,960
20 × 23,798 = 475,960
40 × 11,899 = 475,960
73 × 6,520 = 475,960
146 × 3,260 = 475,960
163 × 2,920 = 475,960
292 × 1,630 = 475,960
326 × 1,460 = 475,960
365 × 1,304 = 475,960
584 × 815 = 475,960
652 × 730 = 475,960
16 unique multiplications The final answer:
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