To find all the divisors of the number 292,000:
- 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 292,000:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
292,000 = 25 × 53 × 73
292,000 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 = (5 + 1) × (3 + 1) × (1 + 1) = 6 × 4 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 292,000
- 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
4 =
16
composite factor = 2
2 × 5 =
20
composite factor = 5
2 =
25
composite factor = 2
5 =
32
composite factor = 2
3 × 5 =
40
composite factor = 2 × 5
2 =
50
prime factor =
73
composite factor = 2
4 × 5 =
80
composite factor = 2
2 × 5
2 =
100
composite factor = 5
3 =
125
composite factor = 2 × 73 =
146
composite factor = 2
5 × 5 =
160
composite factor = 2
3 × 5
2 =
200
composite factor = 2 × 5
3 =
250
composite factor = 2
2 × 73 =
292
composite factor = 5 × 73 =
365
composite factor = 2
4 × 5
2 =
400
composite factor = 2
2 × 5
3 =
500
This list continues below...
... This list continues from above
composite factor = 2
3 × 73 =
584
composite factor = 2 × 5 × 73 =
730
composite factor = 2
5 × 5
2 =
800
composite factor = 2
3 × 5
3 =
1,000
composite factor = 2
4 × 73 =
1,168
composite factor = 2
2 × 5 × 73 =
1,460
composite factor = 5
2 × 73 =
1,825
composite factor = 2
4 × 5
3 =
2,000
composite factor = 2
5 × 73 =
2,336
composite factor = 2
3 × 5 × 73 =
2,920
composite factor = 2 × 5
2 × 73 =
3,650
composite factor = 2
5 × 5
3 =
4,000
composite factor = 2
4 × 5 × 73 =
5,840
composite factor = 2
2 × 5
2 × 73 =
7,300
composite factor = 5
3 × 73 =
9,125
composite factor = 2
5 × 5 × 73 =
11,680
composite factor = 2
3 × 5
2 × 73 =
14,600
composite factor = 2 × 5
3 × 73 =
18,250
composite factor = 2
4 × 5
2 × 73 =
29,200
composite factor = 2
2 × 5
3 × 73 =
36,500
composite factor = 2
5 × 5
2 × 73 =
58,400
composite factor = 2
3 × 5
3 × 73 =
73,000
composite factor = 2
4 × 5
3 × 73 =
146,000
composite factor = 2
5 × 5
3 × 73 =
292,000
48 factors (divisors)
What times what is 292,000?
What number multiplied by what number equals 292,000?
All the combinations of any two natural numbers whose product equals 292,000.
1 × 292,000 = 292,000
2 × 146,000 = 292,000
4 × 73,000 = 292,000
5 × 58,400 = 292,000
8 × 36,500 = 292,000
10 × 29,200 = 292,000
16 × 18,250 = 292,000
20 × 14,600 = 292,000
25 × 11,680 = 292,000
32 × 9,125 = 292,000
40 × 7,300 = 292,000
50 × 5,840 = 292,000
73 × 4,000 = 292,000
80 × 3,650 = 292,000
100 × 2,920 = 292,000
125 × 2,336 = 292,000
146 × 2,000 = 292,000
160 × 1,825 = 292,000
200 × 1,460 = 292,000
250 × 1,168 = 292,000
292 × 1,000 = 292,000
365 × 800 = 292,000
400 × 730 = 292,000
500 × 584 = 292,000
24 unique multiplications The final answer:
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