To find all the divisors of the number 934,780:
- 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 934,780:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
934,780 = 22 × 5 × 7 × 11 × 607
934,780 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) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 934,780
- 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
prime factor =
7
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2 × 7 =
14
composite factor = 2
2 × 5 =
20
composite factor = 2 × 11 =
22
composite factor = 2
2 × 7 =
28
composite factor = 5 × 7 =
35
composite factor = 2
2 × 11 =
44
composite factor = 5 × 11 =
55
composite factor = 2 × 5 × 7 =
70
composite factor = 7 × 11 =
77
composite factor = 2 × 5 × 11 =
110
composite factor = 2
2 × 5 × 7 =
140
composite factor = 2 × 7 × 11 =
154
composite factor = 2
2 × 5 × 11 =
220
composite factor = 2
2 × 7 × 11 =
308
composite factor = 5 × 7 × 11 =
385
prime factor =
607
composite factor = 2 × 5 × 7 × 11 =
770
This list continues below...
... This list continues from above
composite factor = 2 × 607 =
1,214
composite factor = 2
2 × 5 × 7 × 11 =
1,540
composite factor = 2
2 × 607 =
2,428
composite factor = 5 × 607 =
3,035
composite factor = 7 × 607 =
4,249
composite factor = 2 × 5 × 607 =
6,070
composite factor = 11 × 607 =
6,677
composite factor = 2 × 7 × 607 =
8,498
composite factor = 2
2 × 5 × 607 =
12,140
composite factor = 2 × 11 × 607 =
13,354
composite factor = 2
2 × 7 × 607 =
16,996
composite factor = 5 × 7 × 607 =
21,245
composite factor = 2
2 × 11 × 607 =
26,708
composite factor = 5 × 11 × 607 =
33,385
composite factor = 2 × 5 × 7 × 607 =
42,490
composite factor = 7 × 11 × 607 =
46,739
composite factor = 2 × 5 × 11 × 607 =
66,770
composite factor = 2
2 × 5 × 7 × 607 =
84,980
composite factor = 2 × 7 × 11 × 607 =
93,478
composite factor = 2
2 × 5 × 11 × 607 =
133,540
composite factor = 2
2 × 7 × 11 × 607 =
186,956
composite factor = 5 × 7 × 11 × 607 =
233,695
composite factor = 2 × 5 × 7 × 11 × 607 =
467,390
composite factor = 2
2 × 5 × 7 × 11 × 607 =
934,780
48 factors (divisors)
What times what is 934,780?
What number multiplied by what number equals 934,780?
All the combinations of any two natural numbers whose product equals 934,780.
1 × 934,780 = 934,780
2 × 467,390 = 934,780
4 × 233,695 = 934,780
5 × 186,956 = 934,780
7 × 133,540 = 934,780
10 × 93,478 = 934,780
11 × 84,980 = 934,780
14 × 66,770 = 934,780
20 × 46,739 = 934,780
22 × 42,490 = 934,780
28 × 33,385 = 934,780
35 × 26,708 = 934,780
44 × 21,245 = 934,780
55 × 16,996 = 934,780
70 × 13,354 = 934,780
77 × 12,140 = 934,780
110 × 8,498 = 934,780
140 × 6,677 = 934,780
154 × 6,070 = 934,780
220 × 4,249 = 934,780
308 × 3,035 = 934,780
385 × 2,428 = 934,780
607 × 1,540 = 934,780
770 × 1,214 = 934,780
24 unique multiplications The final answer:
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