To find all the divisors of the number 704,970:
- 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 704,970:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
704,970 = 2 × 33 × 5 × 7 × 373
704,970 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) × (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 4 × 2 × 2 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 704,970
- 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
prime factor =
7
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 2 × 7 =
14
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 3
3 =
27
composite factor = 2 × 3 × 5 =
30
composite factor = 5 × 7 =
35
composite factor = 2 × 3 × 7 =
42
composite factor = 3
2 × 5 =
45
composite factor = 2 × 3
3 =
54
composite factor = 3
2 × 7 =
63
composite factor = 2 × 5 × 7 =
70
composite factor = 2 × 3
2 × 5 =
90
composite factor = 3 × 5 × 7 =
105
composite factor = 2 × 3
2 × 7 =
126
composite factor = 3
3 × 5 =
135
composite factor = 3
3 × 7 =
189
composite factor = 2 × 3 × 5 × 7 =
210
composite factor = 2 × 3
3 × 5 =
270
composite factor = 3
2 × 5 × 7 =
315
prime factor =
373
composite factor = 2 × 3
3 × 7 =
378
composite factor = 2 × 3
2 × 5 × 7 =
630
composite factor = 2 × 373 =
746
This list continues below...
... This list continues from above
composite factor = 3
3 × 5 × 7 =
945
composite factor = 3 × 373 =
1,119
composite factor = 5 × 373 =
1,865
composite factor = 2 × 3
3 × 5 × 7 =
1,890
composite factor = 2 × 3 × 373 =
2,238
composite factor = 7 × 373 =
2,611
composite factor = 3
2 × 373 =
3,357
composite factor = 2 × 5 × 373 =
3,730
composite factor = 2 × 7 × 373 =
5,222
composite factor = 3 × 5 × 373 =
5,595
composite factor = 2 × 3
2 × 373 =
6,714
composite factor = 3 × 7 × 373 =
7,833
composite factor = 3
3 × 373 =
10,071
composite factor = 2 × 3 × 5 × 373 =
11,190
composite factor = 5 × 7 × 373 =
13,055
composite factor = 2 × 3 × 7 × 373 =
15,666
composite factor = 3
2 × 5 × 373 =
16,785
composite factor = 2 × 3
3 × 373 =
20,142
composite factor = 3
2 × 7 × 373 =
23,499
composite factor = 2 × 5 × 7 × 373 =
26,110
composite factor = 2 × 3
2 × 5 × 373 =
33,570
composite factor = 3 × 5 × 7 × 373 =
39,165
composite factor = 2 × 3
2 × 7 × 373 =
46,998
composite factor = 3
3 × 5 × 373 =
50,355
composite factor = 3
3 × 7 × 373 =
70,497
composite factor = 2 × 3 × 5 × 7 × 373 =
78,330
composite factor = 2 × 3
3 × 5 × 373 =
100,710
composite factor = 3
2 × 5 × 7 × 373 =
117,495
composite factor = 2 × 3
3 × 7 × 373 =
140,994
composite factor = 2 × 3
2 × 5 × 7 × 373 =
234,990
composite factor = 3
3 × 5 × 7 × 373 =
352,485
composite factor = 2 × 3
3 × 5 × 7 × 373 =
704,970
64 factors (divisors)
What times what is 704,970?
What number multiplied by what number equals 704,970?
All the combinations of any two natural numbers whose product equals 704,970.
1 × 704,970 = 704,970
2 × 352,485 = 704,970
3 × 234,990 = 704,970
5 × 140,994 = 704,970
6 × 117,495 = 704,970
7 × 100,710 = 704,970
9 × 78,330 = 704,970
10 × 70,497 = 704,970
14 × 50,355 = 704,970
15 × 46,998 = 704,970
18 × 39,165 = 704,970
21 × 33,570 = 704,970
27 × 26,110 = 704,970
30 × 23,499 = 704,970
35 × 20,142 = 704,970
42 × 16,785 = 704,970
45 × 15,666 = 704,970
54 × 13,055 = 704,970
63 × 11,190 = 704,970
70 × 10,071 = 704,970
90 × 7,833 = 704,970
105 × 6,714 = 704,970
126 × 5,595 = 704,970
135 × 5,222 = 704,970
189 × 3,730 = 704,970
210 × 3,357 = 704,970
270 × 2,611 = 704,970
315 × 2,238 = 704,970
373 × 1,890 = 704,970
378 × 1,865 = 704,970
630 × 1,119 = 704,970
746 × 945 = 704,970
32 unique multiplications The final answer:
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