Which of the following numbers are prime? Choose all that apply.
Contribution of MCQ Academy (Page: 100)
Determine the highest common factor (HCF) or greatest common divisor (GCD) of 84 and 126.
Find the least common multiple (LCM) of 18 and 24.
Calculate the sum of the first 20 natural numbers.
Select all products from the list that result in a positive number.
Find the highest common factor (HCF) of 84, 126, and 210.
A number is increased by 20% to become 360. Find the original number.
Find the remainder when 10^6 + 10^3 + 1 is divided by 9.
Express the fraction 7/8 as a decimal number.
Select all numbers that are rational.
Select all prime numbers from the list.
Find the least common multiple (LCM) of 18 and 24.
Find the value of the digit 5 in the number 2,456,031.
If 5 + ? = 5 × 3 − 4, find the missing number.
Express 12.5% as a fraction in simplest form.
Round 347 to the nearest ten.
Calculate the product of 27 and 14, then find the sum of the digits of the result.
Which of these numbers is greatest: -3/4, -0.6, -2/3, -0.66
Write 0.45 as a simplified fraction.
Select all prime numbers from the list: 21, 29, 31, 39.
Express 7/8 as a decimal.
Find the greatest common divisor (GCD) of 84 and 126.