To find all the divisors of the number 952,640:
- 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 952,640:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
952,640 = 26 × 5 × 13 × 229
952,640 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 = (6 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 7 × 2 × 2 × 2 = 56
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 952,640
- 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
prime factor =
13
composite factor = 2
4 =
16
composite factor = 2
2 × 5 =
20
composite factor = 2 × 13 =
26
composite factor = 2
5 =
32
composite factor = 2
3 × 5 =
40
composite factor = 2
2 × 13 =
52
composite factor = 2
6 =
64
composite factor = 5 × 13 =
65
composite factor = 2
4 × 5 =
80
composite factor = 2
3 × 13 =
104
composite factor = 2 × 5 × 13 =
130
composite factor = 2
5 × 5 =
160
composite factor = 2
4 × 13 =
208
prime factor =
229
composite factor = 2
2 × 5 × 13 =
260
composite factor = 2
6 × 5 =
320
composite factor = 2
5 × 13 =
416
composite factor = 2 × 229 =
458
composite factor = 2
3 × 5 × 13 =
520
composite factor = 2
6 × 13 =
832
composite factor = 2
2 × 229 =
916
This list continues below...
... This list continues from above
composite factor = 2
4 × 5 × 13 =
1,040
composite factor = 5 × 229 =
1,145
composite factor = 2
3 × 229 =
1,832
composite factor = 2
5 × 5 × 13 =
2,080
composite factor = 2 × 5 × 229 =
2,290
composite factor = 13 × 229 =
2,977
composite factor = 2
4 × 229 =
3,664
composite factor = 2
6 × 5 × 13 =
4,160
composite factor = 2
2 × 5 × 229 =
4,580
composite factor = 2 × 13 × 229 =
5,954
composite factor = 2
5 × 229 =
7,328
composite factor = 2
3 × 5 × 229 =
9,160
composite factor = 2
2 × 13 × 229 =
11,908
composite factor = 2
6 × 229 =
14,656
composite factor = 5 × 13 × 229 =
14,885
composite factor = 2
4 × 5 × 229 =
18,320
composite factor = 2
3 × 13 × 229 =
23,816
composite factor = 2 × 5 × 13 × 229 =
29,770
composite factor = 2
5 × 5 × 229 =
36,640
composite factor = 2
4 × 13 × 229 =
47,632
composite factor = 2
2 × 5 × 13 × 229 =
59,540
composite factor = 2
6 × 5 × 229 =
73,280
composite factor = 2
5 × 13 × 229 =
95,264
composite factor = 2
3 × 5 × 13 × 229 =
119,080
composite factor = 2
6 × 13 × 229 =
190,528
composite factor = 2
4 × 5 × 13 × 229 =
238,160
composite factor = 2
5 × 5 × 13 × 229 =
476,320
composite factor = 2
6 × 5 × 13 × 229 =
952,640
56 factors (divisors)
What times what is 952,640?
What number multiplied by what number equals 952,640?
All the combinations of any two natural numbers whose product equals 952,640.
1 × 952,640 = 952,640
2 × 476,320 = 952,640
4 × 238,160 = 952,640
5 × 190,528 = 952,640
8 × 119,080 = 952,640
10 × 95,264 = 952,640
13 × 73,280 = 952,640
16 × 59,540 = 952,640
20 × 47,632 = 952,640
26 × 36,640 = 952,640
32 × 29,770 = 952,640
40 × 23,816 = 952,640
52 × 18,320 = 952,640
64 × 14,885 = 952,640
65 × 14,656 = 952,640
80 × 11,908 = 952,640
104 × 9,160 = 952,640
130 × 7,328 = 952,640
160 × 5,954 = 952,640
208 × 4,580 = 952,640
229 × 4,160 = 952,640
260 × 3,664 = 952,640
320 × 2,977 = 952,640
416 × 2,290 = 952,640
458 × 2,080 = 952,640
520 × 1,832 = 952,640
832 × 1,145 = 952,640
916 × 1,040 = 952,640
28 unique multiplications The final answer:
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