To find all the divisors of the number 465,948:
- 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 465,948:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
465,948 = 22 × 32 × 7 × 432
465,948 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) × (2 + 1) × (1 + 1) × (2 + 1) = 3 × 3 × 2 × 3 = 54
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 465,948
- 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
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 2
2 × 7 =
28
composite factor = 2
2 × 3
2 =
36
composite factor = 2 × 3 × 7 =
42
prime factor =
43
composite factor = 3
2 × 7 =
63
composite factor = 2
2 × 3 × 7 =
84
composite factor = 2 × 43 =
86
composite factor = 2 × 3
2 × 7 =
126
composite factor = 3 × 43 =
129
composite factor = 2
2 × 43 =
172
composite factor = 2
2 × 3
2 × 7 =
252
composite factor = 2 × 3 × 43 =
258
composite factor = 7 × 43 =
301
composite factor = 3
2 × 43 =
387
composite factor = 2
2 × 3 × 43 =
516
composite factor = 2 × 7 × 43 =
602
This list continues below...
... This list continues from above
composite factor = 2 × 3
2 × 43 =
774
composite factor = 3 × 7 × 43 =
903
composite factor = 2
2 × 7 × 43 =
1,204
composite factor = 2
2 × 3
2 × 43 =
1,548
composite factor = 2 × 3 × 7 × 43 =
1,806
composite factor = 43
2 =
1,849
composite factor = 3
2 × 7 × 43 =
2,709
composite factor = 2
2 × 3 × 7 × 43 =
3,612
composite factor = 2 × 43
2 =
3,698
composite factor = 2 × 3
2 × 7 × 43 =
5,418
composite factor = 3 × 43
2 =
5,547
composite factor = 2
2 × 43
2 =
7,396
composite factor = 2
2 × 3
2 × 7 × 43 =
10,836
composite factor = 2 × 3 × 43
2 =
11,094
composite factor = 7 × 43
2 =
12,943
composite factor = 3
2 × 43
2 =
16,641
composite factor = 2
2 × 3 × 43
2 =
22,188
composite factor = 2 × 7 × 43
2 =
25,886
composite factor = 2 × 3
2 × 43
2 =
33,282
composite factor = 3 × 7 × 43
2 =
38,829
composite factor = 2
2 × 7 × 43
2 =
51,772
composite factor = 2
2 × 3
2 × 43
2 =
66,564
composite factor = 2 × 3 × 7 × 43
2 =
77,658
composite factor = 3
2 × 7 × 43
2 =
116,487
composite factor = 2
2 × 3 × 7 × 43
2 =
155,316
composite factor = 2 × 3
2 × 7 × 43
2 =
232,974
composite factor = 2
2 × 3
2 × 7 × 43
2 =
465,948
54 factors (divisors)
What times what is 465,948?
What number multiplied by what number equals 465,948?
All the combinations of any two natural numbers whose product equals 465,948.
1 × 465,948 = 465,948
2 × 232,974 = 465,948
3 × 155,316 = 465,948
4 × 116,487 = 465,948
6 × 77,658 = 465,948
7 × 66,564 = 465,948
9 × 51,772 = 465,948
12 × 38,829 = 465,948
14 × 33,282 = 465,948
18 × 25,886 = 465,948
21 × 22,188 = 465,948
28 × 16,641 = 465,948
36 × 12,943 = 465,948
42 × 11,094 = 465,948
43 × 10,836 = 465,948
63 × 7,396 = 465,948
84 × 5,547 = 465,948
86 × 5,418 = 465,948
126 × 3,698 = 465,948
129 × 3,612 = 465,948
172 × 2,709 = 465,948
252 × 1,849 = 465,948
258 × 1,806 = 465,948
301 × 1,548 = 465,948
387 × 1,204 = 465,948
516 × 903 = 465,948
602 × 774 = 465,948
27 unique multiplications The final answer:
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