Rafflesia consueloae studied. The species is the smallest of all "Rafflesia", measuring an average diameter of when fully expanded. The disk surface of newly opened flowers of "R. consueloae" is described to as distinctly cream-white and usually without processes. It is reported that "R. consueloae" has bisexual flowers, the third species after "R. baletei" and "R. verrucosato" to be described as such in the Philippines, but it has not been established whether both sexes of each flower are functional. "Rafflesia consueloae"'s flowers do not exhibit the distinct odor found in "R. arnoldii" (nicknamed the "corpse flower") and most species of "Rafflesia", with
Largest known prime number Largest known prime number The largest known prime number () is 2 − 1, a number with 23,249,425 digits. It was found by the Great Internet Mersenne Prime Search (GIMPS) in 2017. Euclid proved that there is no largest prime number, and many mathematicians and hobbyists continue to search for large prime numbers. Many of the largest known primes are Mersenne primes. , the seven largest known primes are Mersenne primes. The last sixteen record primes were Mersenne primes. The fast Fourier transform implementation of the Lucas–Lehmer primality test for Mersenne numbers is fast compared to other known primality tests