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Find the LCM of 36, 33, and 14.
Correct answer(s):
- 2772
Determine the GCD of 299 and 400 without using prime factor tables.
Correct answer(s):
- 1
Find 20% of 214.
Correct answer(s):
- 214/5
Reduce the fraction 18/54 to lowest terms.
Correct answer(s):
- 1/3
What is the remainder when 9274 is divided by 12?
Correct answer(s):
- 10
Find the sum of the arithmetic sequence 1, 4, 7, …, 43.
Correct answer(s):
- 330
How many integers from 1 to 56 are coprime to 56?
Correct answer(s):
- 24
What is the units digit of 12^121?
Correct answer(s):
- 2
Calculate the number of trailing zeros in 80!.
Correct answer(s):
- 19
Find the number of positive divisors of 72.
Correct answer(s):
- 12
Find the remainder when 7^212 is divided by 13.
Correct answer(s):
- 3
Find the LCM of 39, 38, and 32.
Correct answer(s):
- 23712
Determine the GCD of 450 and 366 without using prime factor tables.
Correct answer(s):
- 6
Find 30% of 220.
Correct answer(s):
- 66
Reduce the fraction 40/66 to lowest terms.
Correct answer(s):
- 20/33
What is the remainder when 2050 is divided by 6?
Correct answer(s):
- 4
Evaluate 144^2 − 18^2 using an arithmetic identity.
Correct answer(s):
- 20412
Find the sum of the arithmetic sequence 36, 44, 52, …, 228.
Correct answer(s):
- 3300
How many integers from 1 to 96 are coprime to 96?
Correct answer(s):
- 32
What is the units digit of 13^234?
Correct answer(s):
- 9